Fig. 5From: 3D printing fabrication process for fine control of microneedle shapea The result of aspect ratio of PI microneedles according to the print height (n = 10). b The result of height implementation rate of the PI microneedle according to the print height (n = 10). c The result of height implementation rate of the PI microneedle (all heights) according to the print angle (n = 10). d The result of height implementation rate of the PI microneedle (1000 μm) according to the print angle (n = 10)Back to article page